Hot-water heater.



PATENTED OCT. 25, 1904.

C. G. LONGARD. HOT WATER HEATER.

APPLICATION FILED AUG. 17, 1903.

6 SHEETS-SHEET 1.

no MODEL.

[NVE/VTOR WITNESSES.-

PATENTED OUT. 25, 1904.

C. G. LO NGARD. HOT WATER HEATER. APPLICATION FILED AUG. 17, 1903.

6 SHEETS-SHEET 2.

WITNESSES.-

PATENTED OUT. 25, 1904.

0. 0. LONGARD. ;HOT WATER HEATER. APPLICATION FILED AUG. 17, 19403.

6 SHEETB-BHBET 3.

.No MODEL.

3) [NVENTOR Attorney WITNESSES- No. 773,152. PATENTED OUT. 25, 1904. G.O. LONG-ARE.

HOT WATER HEATER.

APPLICATION FILED AUG. 17, 1903. x0 MODEL. swarm- HEET 4.

Q'vil'uemco Quad/ PATENTED OCT. 25, 1904.

0. G. LONGARD. HOT WATER HEATER.

APPLICATION FILED AUG. 1?, 1903.

6 SHEETS-SHEET 5.

NO MODEL.

PATENTED OCT. .25, 1904.

C. U. LONGARD.

HOT WATER HEATER.

APPLICATION IILED AUG. 17, 1903.

6 SHEETS-SHEET 6.

N0 MODEL.

WN RE vwmdoz I wimwoeo Patented October 25, 1904.

PATENT OFFICE.

CLARENCE C. LONGARD, OF HALIFAX, CANADA.

HOT-WATE-R HEATER.

SPECIFICATION forming part of Letters Patent No. 773,152, dated October25, 1904.;

I Application filed August 17, 1903. Serial No. 169,820. (No model.) i iTo all whom it may concern/.-

Be it known that I, CLARENCE C. LONGARD, a citizen of Canada, residingat Halifax, in the Province of Nova Scotia and Dominion of Can- .ada,have invented new and useful Improvements in Hotater Heaters, of whichthe fol- .lowing is a specification.

My invention pertains to hot-water heaters or boilers, and has for oneof its objects to provide a heater or boiler which, while simple andcompact in construction, is possessed of a very large heating-surface,and is there-* fore highly efficient in operation.

Another object of the invention is to provide an improved hot-waterheater or boiler comprising a plurality of hollow cast-metalwater-holding sections, any one of which may be readily removed whenimpaired and replaced with a new section to the other sections.

Another object is to provide a hot-water without detriment heater orboiler embodying an improved grate calculated to enable an operator tokeep the fire clean and bright with but a minimum amount of effort andwithout loss of fire.

lVit-h the foregoing in mind the invention will be fully understood fromthe following description and claims when taken in connection with theaccompanying drawings, in which Figure 1 is a front elevation of awaterheater constituting one embodiment of my invention. Figs. 2 and 3are detail sections of the improved grate with the rocking membersthereof in different positions. Fig. 4 is a perspective view of one ofthe large rocking members of the grate. Fig. 5 is a similar view of oneof the small rocking members of the grate. Figs. 6 and 7 are detailbroken views of opposite sides of the bars in which the rocking membersof the grate are mounted. Fig. 7 is a cross-section of one of the saidbars. Fig. 8 is a plan View, and Fig. 9

a cross-section, of a damper embodied in the elevation, and Fig. 13 avertical central section and a central vertical section, respectively,of another intermediate Water-holding section. Fig. 18 is a verticalsection, Fig. 19 a rear elevation, and Fig. 20 a vertical section in adifferent plane from Fig. 18, of still another intermediatewater-holding section. Fig. 21 is a longitudinal vertical section of amodified embodiment of my invention. Fig. 22 is a horizontal section ofthe same. Fig. 23 is a front elevation of said modification, and Fig. 24is a front elevation of one of the intermediate water-holding sectionsthereof removed.

Referring by letter to said drawings, and more particularly to Figs. 1to 20 thereof, A

is the base of my improved heater, which is preferably of cast metal andrectangular in form. Said base is provided with an ashdoor a andcontains a horizontal foraminated plate which forms the floor ofan'ash-pit c, and a plate (Z, which is inclined upwardly from the rearend of the plate I) for a purpose presently described.

B is the front water-holding section of the heater, which alsoconstitutes part of the. front wall thereof. This section comprises, asbest shown in Figs. 10, 12, and 13, a lower hollow cross-bar c, hollowside bars f, one of which has an opening g in its rear side, anintermediate hollow cross-bar it, an upper hollow crossbar 71, havingopenings in its front and rear walls at its middle, and a plate 1:,extending between the bars" 0, f, and h and having an opening Z for theintroduction of fuel. On its front the said section is provided with afire-door C and doors D, the latter to permit of access beingreadilygained to fiues hereinafter described.

E is the intermediate water-holding section next to the front section B,and F the intermediate section in rear of the section E. These sectionsE and F are similar in construction, and thereforea detailed descriptionof the section E (shown in Figs. 14 and 15) will suffice to impart anunderstanding of both. Said section E comprises a lower hollow cross-bar011,

a combustion-chamber P, and the cross-bars hollow sidebarsn, one ofwhichhas openings 7) j m of the sections E and F and the cross-bare inits front and rear walls, an upper hollow cross-bar q, having openings0' in its front and rear walls, intermediate hollow cross-bars s t, anda central vertical hollow bar it, connecting the cross-bars s, t, and(1.

G is the intermediate water-holding section in rear of the section F.This section G comprises a lower hollow cross-bar n, Fig. 16, hollowside bars in, one of which has openings 12 in its front and rear walls,an upper hollow cross-bar 1 having openings .2 in its front and rearwalls at its middle, an angular hollow bar (1., interposed betweenone'of the side bars and the upper cross-bar, and a hollow bar 6',interposed between the said side bar and the apex of the angular bar.

H, Figs. 18 to 20, is the intermediate waterholding section back of thesection Gr. Said section H comprises hollow side bars d, one of whichhas openings d in its front and rear walls, an upper hollow cross-bar 0,having openings f in its front and back walls at its middle, and ahollow upright portion g, which extends throughout the height of thesection and has an opening It, the lower wall 7." of which is beveled,and a rearward projection j, extending down from the upper cross-bar cto about the intermediate point in the height of the section. (Shown inFigs. 18 to 20.)

I is the back waterholding section. This section is similar inconstruction to the section H with the exception that it has an openingf in but the front wall of its upper crossbar a. Said section I is,however, reversed as compared to the section H?l. 0., its projection 7"extends forwardly and meets the similar projection of the section H andits opening it is disposed at the opposite side of said meetingprojections with respect to the opening it of said section H.

K is the hot or flow pipe of a hot-waterheating system, which isconnected to the water-holding section B, preferably in a detachablemanner, as shown; L, the return or cold pipe of the system, similarlyconnected to the back section I and communicating with the rear openingthereof, and M a smokepipe, also connected to the section I andcommunicating with the opening /2, thereof.

The several water-holding sections B, E, F, G, H, and I of my heater arearranged on the base A in the relation shown in Figs. 10 and 11 and areheld close together by longitudinal rods N, which are connected to lugs72/ on the front and back sections B and I, as shown in Figs. 1 and 10.From this it follows that when the rods N are disconnected from the lugs02. any one of the water-holding sections may be readily removed and asreadily replaced without detriment to the other sections.

hen the water-holding sections are arranged on the base, as described,it will be observed that the sections B, E, F, and G form of the sectionG rest in the lower portion of the chamber, so as to form hollowgrate-bars. It will also be observed that the bars '16 of the sections Eand F and the vertical portion of the angular bar a of the section (:lr.form a longitudinal central partition which divides the space above thecombustion-chamber into longitudinal flues Q R, Figs. 10 and 11, andthat the meeting projections j of the sections H and I divide the spaceat the back of the combustion-chamber P into a vertical flue S, whichcommunicates with and extends downwardly from the rear end of the flueB, and a vertical flue T, which communicates with the flue S below thepartition formed by the projections 7" and extends up to andcommunicates with the smoke-pipe M.

Below the partition formed by the projections 7' is a pocket U, at thebottom of which is a pivoted damper V. The pocket is designed to receiveand hold soot, and when the damper is opened it will be observed thatthe soot will be dumped on the inclined plate and will pass down thesame to the plate Z). The damper may also be opened when desired toafford a direct draft from the ash-pit to the pipe M and to enable sucha draft to carry off the dust incident to the shaking of the grate,presently described.

WV designates longitudinal bars fixed in the ash-pit 0 at opposite sidesthereof and notched and grooved, as shown in Figs. 6 andT, to permit thepassage of air.

X X are the large rocking members of my improved grate, whichrespectively comprise a rock-shaft a", journaled in the bars W, andfingers 6 carried by and disposed at right angles to said shaft.

Y Y are the small rocking members of the grate, which respectivelycomprise a shaft 0 journaled in the bars W, and fingers (Z arranged atright angles to the shaft.

Z Z are stops on the bars W, which have for their purpose to limit theupward movement of the members X.

A A are steps on the bars W designed to support the members Y in theposition shown in Fig. 10.

B B are Weighted arms fixed on the ends of the shafts (0 outside theheater and connected together by a bar 0 and provided with weights D andE is a hand-lever fixed on one of the shafts a and also disposed outsidethe heater.

The grate members X Y are relatively arranged, as shown in Fig. 10 z. e.with theouter ends of the fingers of the members Y adjacent to the outerends of thefingers of the members X. In virtue of this it will beobserved that when the hand-lever E is thrown into an inclined positionthe fingers of the members X will raise the fingers of the members Y,and thereby work out any clinkers that may be on the grate,and thiswithout material loss of fire. It will also be observed that when thelever E is released the weights D will return the members X to thenormal positions, (shoWn in Fig. 10.) while the members Y will gravitateto and rest on the stops A The cross-bar c of the water-holding sectionG, which, as before stated, forms a hollow grate-bar, is preferablyshaped as shown in cross-section in order to fill the space between theadjacent rocking member of the grate and the back wall of thecombustion-chamber P.

The arrangement of the hollow bars of the water-holding sectionsimmediately above the rocking grate members is advantageous, since itenables said bars to hold up the coal while the grate is being shaken.

In the practical operation of my improved heater the course of theflames and products of combustion is from the combustion-chamber Pthrough the horizontal fiuesQ and R and the vertical flues S and T inthe order named to the smoke-pipe M, and in consequence it will beobserved that my improved heater has a very large heating-surface andthat practically all of the heat afforded by the consumption of fuel inthe combustion-chamber is utilized to heat the water contained in thewater-holding sections. The course of the water to be heated is from thereturn or cold pipe L through the sections I, H, G, F, E, and B in theor- .der named to the flow or hot pipe K. In taking such course thewater is at all times in contact with a highly-heated portion of one ofthe water-holding sections, and from this it follows that my improvedheater is possessed of very large capacity.

The utilization of the front water-holding section to form part of thefront wall of the heater and the back water-holding section to form partof the back wall of the heater is advantageous, since said walls areadapted to prevent the radiation of heat from the combustion-chamber.

In the modification shown in Figs. 21 to 24 it will be observed that theintermediate water-holding sections E and F each have two hollowvertical portions 10 the intermediate water-holding section Gr has twohollow angular portions (0, and the-intermediate section H and the backsection I each have two projections 1' From this construction it followsthat the modified heater has two longitudinal flues R above itscombustion-chamber P, a longitudinal central flue Q between the flues Rvertical flues S communicating with and extending down from the rearends of the flues R a vertical flue T disposed between the flues S andcommunicating witha smoke-pipe, a pocket U connecting the flues S T attheir lower ends, and a damper V similar to the damper V, beforedescribed, at the bottom of the pocket U In the modified constructionthe course of the flames and products of combustion is from thecombustiouchamber P through the horizontal flue Q, the horizontal fluesR the vertical flues S and the vertical flue T in the order named to thesmokestack, while the course of the water to be heated is from a returnor cold pipe L through the sections I H G F E and Win the order named toa flow or hot pipe K It will be readily appreciated from the foregoingthat the construction shown in Figs. 21 to 24 is possessed of all of theadvantages of that shown in Figs. 1 to 20 and'also has an increasedheating-surfacc due to the employment of three horizontal flues and twodownflues instead of two horizontal flues and one down-flue.

In both embodiments of my invention but two Water-ports are cast in eachsection. This makes a saving of one port as compared with hot-waterheaters extant, which have three water-ports in each section, andassures a much better circulation of water throughout the heater.

I have entered into a detailed description of the construction andrelative arrangement of the parts embraced in the two embodiments of myinvention herein disclosed in order to impart a full, clear, and exactunderstanding of said embodiments. I do not desire, however, to beunderstood as confining myself to such specific construction andrelative arrangement of parts, as such changes or modifications may bemade in practice as fairly fall within the scope of my invention asclaimed.

Having described my invention, what I claim. and desire to secure byLetters Patent, 1s

1. Ahot-waterheater comprisingaplurality of water-holding sectionscommunicating with each other and detachably held together; several ofthe intermediate sections having hollow upright portions, lower hollowcross-bars, intermediate hollow cross-bars and upper hollow'cross-bars,and all of the sections being arranged to form a combustion-chamberabove the lower hollow cross-bars of said intermediate sections, alongitudinal flue disposed above the combustion-chamber andcommunicating with the rear portion of the same, and a longitudinal fluedisposed above the combustion-chamber in the same horizontal plane asthe first-mentioned longitudinal flue, and connected at its forward endwith the said firstmentioned longitudinal flue, an upright flue disposedback of the combustion-chamber and leading downwardly from thesecond-mentioned longitudinal flue, and a second upright flue disposedback of the combustion-chamber in the same transverse plane as thefirst-mentioned upright flue, and connected at its lower end with saidfirst-mentioned upright flue, and adapted to be connected to asmoke-conduit.

2. A hot-water heater comprising a plurality of hollow Water-holdingsections, communicating with each other and detachably connectedtogether; several of the intermediate sections having hollow uprightportions, lower hollow cross-bars, intermediate hollow cross-bars andupper hollow cross-bars, and all of the sections being arranged to forma combustion-chamber above the lower hollow cross-bars of saidintermediate sections, a longitudinal flue disposed above thecombustiomohamber and communicating with the rear portion of the same,and a longitudinal flue disposed above the combustion-chamber in thesame horizontal plane as the first-mentioned longitudinal flue, andconnected at its forward end with the said first-mentioned longitudinalflue, an upright flue disposed back of the combustion eham her, andleading downwardly from the secondmentioned longitudinal flue; a secondupright flue disposed back of the combustion-chamber and extendingupwardly from the lower end of the first-mentioned upright flue, apocket disposed back of the combustion-chamber and connecting the lowerportions of the upright flues, a damper in the pocket, an ash-pit belowthe combustion-chamber, and a chute arranged to receive from the pocketand discharge into the ash-pit.

3. A hot-water heater comprising a plurality of hollow water-holdingsections detachably held together and arranged to form acombustion-chamber; each of the said sections having a water-port in thecenter of its top and awater-port in the lower portion of one of itslegs, and also having a hollow cross-bar connecting its legs andarranged at the bottom of the combustion-chamber, and an intermediatehollow cross-bar, a longitudinal flue disposed above theeombustion-chamber and communicating with the rear portion of the same,a longitudinal flue disposed above the combustion-cham her in the samehorizontal plane as the first-mentioned longitudinal flue and connectedat its forward end with the said first-mentioned longitudinal flue, anupright flue disposed back of the combustion-chamber and leadingdownwardly from the secondmentioned longitudinal flue, and a secondupright flue disposed back of the combustionchamber in the sametransverse plane as the first-mentioned upright flue, and connected atits lower end with said first-mentioned upright flue, and adapted to beconnected with a smoke-conduit.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CLARENCE C. LONGARD.

\Yitnesses:

EDMUND P. ALLIsoN, JOHN T. Ross.

